FORTUNE — As unhappy as McKenzie Bezos appeared to be with author Brad Stone’s unflattering portrait of her husband in the new book The Everything Store — immediately after its publication, she wrote a stinging review (on Amazon.com, of course) calling the book “lopsided and misleading” for focusing too much on “moments of tension” between staff members — she might not want to push back too hard. By highlighting the Amazon (AMZN) CEO’s propensity to berate his staff, Stone may actually be doing him and his company a favor.